failed medical management

Hi I've posted about my mc a few times now sorryI should be 9-10 wks baby never grew only the sack. The sacks been growing at the same rate as the week number. Anyway on Monday I went for a medical management but apart from some light spotting it's failed am booked in for more tablets on Sat what's the likelihood that this will be a success? they don't seem keen on a surgeral management because it's to drastic for this pregnancy. I just want it over now